Device for connecting a window sash with a window frame



Aug. 5, 1958 w. vs-rER ETAL 2,845,552

I DEVICE FOR CONNECTING A WINDOW SASH WITH A WINDOW FRAME Filed Sept. 15, 1953 2 Sheets-Sheet 1 IHVEnToRs: WHkTER VJST'ER rm RL DIETL Aug. 5, 1958 w. vOsTER ETAL 2,845,652

DEVICE FOR CONNECTING A wmnow SASH WITH A WINDOW FRAME Filed Sept. 15, 1953 2 Sheets-Sheet 2 mvemngs WALTER VJSTE AND DEVICE FOR CONNECTING A WINDOW SASH WITH A WINDOW FRAME Walter Vtister, Stuttgart-Feuerbach, and Carl Dietz, Stuttgart-Bad Cannstatt, Germany, assignors to Vereinigte Baubeschlag Fabriken Gretsch & Co., G. in. b. H., Stuttgart-Feuerbach, Germany This invention relates to a device'forconnectinga window sash with a window frame in amanner whereby the sash may both be swung about a vertical axis and tilted about a' horizontal axis.

An object of the invention is the provision of a device ensuring positive guiding and convenient operation of the sash.

Another object of the invention is the provision of a device so designed as to prevent impermissible high stressing in the connection when the sash through inadvertence, or otherwise, has not been locked in its horizontal swivelling axis and is then swung into the tilting position.

Another object of the invention is to provide a device enabling easy removal of the sash.

A further object of the invention is the provision of a device wherein the articulated connection, the so-called stay hinge is so designed as to fold up closely in a manner requiring a minimum of space when the window is closed.

A still further object of the invention is to provide a sash operating device including novel and improved means for the articulated connection so designed as to enable easy opening and closing of the window sash.

An important feature of the present invention therefore consists in a construction wherein the connection of the sash window with the window frame is established by a stay hinge composed of two links, wherein the link associated with the sash is connected thereto by an articulated fulcrum member having a vertical axis with respect to the horizontal tilting axis of the sash.

According to another feature of the invention, one of the two links has a channel-shaped cross-sectional form so as to accommodate the other link in the manner of a pocket or jack knife. Thus is attained a stay hinge which is small and compact in structure and in the closed position of the window not larger but eventually smaller than a conventional mortise-hinge. This construction protects also the painted or finished surface of the articulated connection from being damaged. In addition, the links are partly invisible from the outside.

Other objects and features of the invention will become apparent from the following description taken in connection with the accompanying drawings which illustrate a preferred embodiment of the invention. In the drawings:

Fig. 1 is a side view, partly in section and partly in elevation, of the device provided by the invention,

Fig. 2 is a front view of the subject matter shown in Fig. 1,

Fig. 3 is a section on line 3--3 of Fig. 1,

Fig. 4 is a view showing the stay hinge in open condition, and

Fig. 5 a top plan view of the subject matter shown in Fig. 4.

In these drawings the numeral indicates the window frame on which the fitting 11 is mounted, and 12 indicates the sash which has mounted thereon the mufishaped fulcrum socket or sleeve 13.

Securely connected with the fitting 11 is a fork 14 which has articulatedly mounted therein a-link 15 by means of a cross pin' 16. The link 15 is in 'the'closed position, as shown in Fig. 1, enclosed within the link 17 which is of channel-shaped. cross sectional form. Both links are connected together by 'a pin-18 on their specific end which is their upper end in their folded'upcondition. Linked by means'of a further cross pin 19to the lower end of the link 17 is an articulatedfulcrum' or' pivot member 20 inthe form of a pin and'pivotally supported in'the socket 13, which is fastened'to 'the sash, and, for example, secured therein against axial displacement.

The articulated fulcrum pin 20 has a pin-shaped extension 21 adapted to engage the bore 22 of'the'latch member 23. The, latter islinked'by means of apin 24" to thefitting lland by means of a spring 25 is urged ontwardly in a know manner so as to hold the articulated fulcrum pin 20 in :the position shown in Fig. 1. "Theoutward movement'of the latch is limited by a stop.

For releasing the stay hinge for the purpose of tilting the sash, the latch 23 can be depressed by hand, or alternatively, particularly if the stay hinge is arranged at a higher level, pulled downwardly by means of a pull member 29 in the direction of the arrow p against the action of the spring 25. For facilitating the tilting operation, the latch is further provided with an extension 26 serving as ejector, which on depression of the latch in the direction of arrow p abuttingly engages the socket 13 and thereby pushes the sash away from the window frame when the fulcrum member 20, 21 is released.

Further, the link 15 is provided with a stop 27 which abuttingly engages a counter stop 28 on the link 27 as soon as the sash-staying position of the stay hinge shown in Figs. 4 and 5, consistent with the extreme tilting position of the sash, is reached. In this position the links 15, 17 are somewhat upwardly deflected so as to enable their easy and eventually automatic folding up when the sash is returned into the closed position according to Figs. 1-3.

When using the window as swinging sash it can readily be swung about the vertical axis of the stay hinge, in that the fulcrum socket 13 turns upon the articulated fulcrum pin 20.

While there is herein described a single embodiment of the invention other embodiments within the scope of the appended claims will be obvious to those skilled in the art.

What we claim is:

1. A device for connecting a window sash to a window frame for tilting movement about a horizontal axis as well as for swinging movement about an axis perpendicular to said horizontal axis, comprising, in combination, a first link having a pair of opposite end portions; means cooperating with one of said end portions of said first link for connecting said first link to the wind-ow frame for turning movement about a horizontal axis; a second link having a pair of opposite end portions; means cooperating with the other of the end portions of said first link and with one of the end portions of said second link for interconnecting said first and second links at the latter end portions thereof, respectively, for turning movement one with respect to the other about a horizontal axis; an elongated pivot pin; means cooperating with one end portion of said pivot pin and with the other end portion of said sec-0nd link for interconnecting said pivot pin and second link for turning movement one with respect to the other about a horizontal axis, said pivot pin having an axis normal to the latter horizontal axis; a tubular socket member coaxially receiving said pivot pin in the interior thereof and turnable with respect to said pivot pin about the axis thereof; and means cooperating 3; A device as recited in said pivot pin extending downwardly from said second link and. said other end portion of said first link and said one end portion of said second link abutting against each other before, said second link turns upwardly with respect to said first link to a positionin alignment therewith sothat the angle between saidtfirst and second links is always less than 180 and said second link being directed A the window sash and a closed position until said latch means is released.

5. A device as recited in claim 1 including engaging means between said pivot pin and socket member for preventing relative axial movement between said pin and socket member when the sash has been tilted about a horizontal axis to an open position so that said socket member cannot move away from said pivot pin.

References Cited in the file of this patent UNITED STATES PATENTS 373,984 Johnson et a1 Nov. 29, 1887 1,220,259 Moore et al Mar. 27, 1917 2,212,114 Diestelkamp Aug. 20, 1940 2,539,066 Falk Jan. 23, 1951 FOREIGN PATENTS 646,815 Germany June 21, 1937 855,512 Germany Nov. 13, 1952 857,764 Germany Dec. 1, 1952 899,601 Germany Dec. 14, 1953 

